Company lists · Data refreshed September 2026

Top 25 International HR outsourcing companies worldwide

Name: International HR outsourcing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 32,468 companies tracked

RevenueBase identified 32,468 company matches for international HR outsourcing companies worldwide as of September 2026 and tracks 903,563 professional contacts across them, including 154,174 with verified work emails. India is the largest market and Mumbai the largest hub.

This list covers company matches for international HR outsourcing companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for international HR outsourcing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

32,468Companies

903,563Contacts tracked

154,174Verified emails

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The 25 largest international HR outsourcing companies worldwide

Ranked by team size

Top 25 of 32,468 company matches for international HR outsourcing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Adecco	Exact match	Zurich, SwitzerlandHQ recorded Sep 28, 2026	10001+	141,230 contacts →
	Exact match “Perfect placements.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	ADP	Exact match	Roseland, NJ, United StatesHQ recorded Sep 28, 2026	10001+	84,166 contacts →
	Exact match “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Paychex	Exact match	Rochester, NY, United StatesHQ recorded Sep 28, 2026	10001+	17,911 contacts →
	Exact match “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Insight Global	Exact match	Atlanta, GA, United StatesHQ recorded Sep 28, 2026	n/a	15,553 contacts →
	Exact match “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Intelcia	Exact match	Casablanca, MoroccoHQ recorded Sep 28, 2026	10001+	13,214 contacts →
	Exact match “Intelcia is a global player in outsourcing, which has supported its clients for 20 years combining talents, technologies, and processes to offer a tailor-made service and skills…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	8,522 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Logica	Exact match	Montreal, QC, CanadaHQ recorded Sep 28, 2026	10001+	7,416 contacts →
	Exact match “Logica is now part of CGI, a global IT and business process services provider delivering business consulting, systems integration and outsourcing services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	DEEL	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	6,510 contacts →
	Exact match “Deel is one platform for payroll, HR, benefits, mobility, performance, and device management across 150+ countries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Vialto	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	5,587 contacts →
	Exact match “Vialto is focused on transforming the global mobility ecosystem to support multinational organizations and their employees.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Strada	Exact match	The Woodlands, TX, United StatesHQ recorded Sep 28, 2026	5,001-10,000	5,585 contacts →
	Exact match “With over 30 years as a global people, payroll, and technology leader, Strada specializes in removing complexity to simplify workforce management.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Lancesoft, INC	Exact match	Herndon, VA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	4,877 contacts →
	Exact match “Established in LanceSoft is a pioneer in delivering top-notch Global Workforce Solutions and IT Services to a diverse clientele.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Insperity	Exact match	Kingwood, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,761 contacts →
	Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Liderança Serviços	Exact match	São José, BrazilHQ recorded Sep 28, 2026	10001+	4,504 contacts →
	Exact match “Atuamos nos principais setores de terceirização, e somos pioneiros na implantação de contratos à distância.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Cloudstaff	Exact match	Sydney, AustraliaHQ recorded Sep 28, 2026	5,001-10,000	4,342 contacts →
	Exact match “We are Cloudstaff, the remote staffing pioneer that combines ethical outsourcing with enterprise-grade people tech.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Emapta Global	Exact match	Mandaluyong, PhilippinesHQ recorded Sep 28, 2026	10001+	4,337 contacts →
	Exact match “ANewEraOfGlobalTalent: Your Team.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Trinet	Exact match	Dublin, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,056 contacts →
	Exact match “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	GUSTO	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,543 contacts →
	Exact match “Gusto has been growing the small business economy for 15+ years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Randstad India	Exact match	Chennai, IndiaHQ recorded Sep 28, 2026	1,001-5,000	3,145 contacts →
	Exact match “Randstad is the world’s largest talent company and a partner of choice to clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Randstad España	Exact match	Madrid, SpainHQ recorded Sep 28, 2026	1,001-5,000	3,083 contacts →
	Exact match “Randstad es la empresa líder en España en soluciones de Recursos Humanos, haciendo posible que cada día personas en nuestro país tengan un empleo.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Allegis Global Solutions	Exact match	Hanover, MD, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,866 contacts →
	Exact match “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	NGA Human Resources, An Alight Company	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	2,734 contacts →
	Exact match “At Alight \| NGA Human Resources our mission is to make HR work better.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	SD Worx	Exact match	Antwerp, BelgiumHQ recorded Sep 28, 2026	5,001-10,000	2,561 contacts →
	Exact match “SD Worx is your HR, Pay and Time partner in Europe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	PT Infomedia Solusi Humanika ISH	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 28, 2026	10001+	2,496 contacts →
	Exact match “PT.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Groupe Samsic	Exact match	Cesson-sevigne, FranceHQ recorded Sep 28, 2026	10001+	2,386 contacts →
	Exact match “Since 1986, the development of Samsic has been entirely due to the skills of the 70 mens and women who make up our company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	HR Path	Exact match	Paris La Défense, GermanyHQ recorded Sep 28, 2026	1,001-5,000	2,324 contacts →
	Exact match “HR Path, an expert, and a major player in Human Resources, helps companies for who the human experience is essential to their digital transformation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “international HR outsourcing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 32,468 international HR outsourcing companies worldwide

See the full list, filter by size, metro and specialty, and access 154,174 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International HR outsourcing companies worldwide at a glance

As of Sep 28, 2026

17.1%Verified-email coverage

27.8Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Mumbai

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

16,739

11-50

9,017

51-200

3,571

201-500

1,374

501-1,000

681

1,001-5,000

669

5,001-10,000

190

10001+

155

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for international HR outsourcing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “international HR outsourcing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 154,174 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

International HR outsourcing companies by location

152 lists · largest first

Every International HR outsourcing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international HR outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international HR outsourcing companies are there worldwide?

RevenueBase identified 32,468 company matches for international HR outsourcing companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Adecco tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most international HR outsourcing companies?

India leads with 5,222 companies, followed by the United States (4,143) and Brazil (1,785). Every international HR outsourcing companies list by country and city is linked on this page.

Which city has the most international HR outsourcing companies?

Mumbai leads with 441 company records, followed by Sao Paulo (406) and New Delhi (389).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 154,174 professional contacts with verified work emails tracked across these 32,468 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.